Patents by Inventor Erik Christopher Bard

Erik Christopher Bard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Printing apparatus with focusing of toner particles
    Patent number: 6254221
    Abstract: Various methods and apparatus are disclosed for facilitating the loading, transportation, and modulation of toner particles on a print head, as well as the transfer of toner particles onto a print medium. These methods and apparatus relate to the optimization of various elements on the print head to improve the speed and control of toner particles on the print head, as well as to the alteration of the electric field in the vicinity of the end of the print head.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: July 3, 2001
    Assignee: Lexmark International, Inc.
    Inventors: Erik Christopher Bard, Gary Allen Denton, David Daniel Dreyfuss
  • Toner transport device having electrically altered launch runway and particle flow dividers
    Patent number: 6161921
    Abstract: Various methods and apparatus are disclosed for facilitating the loading, transportation, and modulation of toner particles on a print head, as well as the transfer of toner particles onto a print medium. These methods and apparatus relate to the optimization of various elements on the print head to improve the speed and control of toner particles on the print head, as well as to the alteration of the electric field in the vicinity of the end of the print head.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: December 19, 2000
    Assignee: Lexmark International, Inc.
    Inventors: Erik Christopher Bard, Gary Allen Denton, David Daniel Dreyfuss
  • Optimization of transport parameters for traveling wave toner transport devices
    Patent number: 6123417
    Abstract: Various methods and apparatus are disclosed for facilitating the loading, transportation, and modulation of toner particles on a print head, as well as the transfer of toner particles onto a print medium. These methods and apparatus relate to the optimization of various elements on the print head to improve the speed and control of toner particles on the print head, as well as to the alteration of the electric field in the vicinity of the end of the print head.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: September 26, 2000
    Assignee: Lexmark International, Inc.
    Inventors: Erik Christopher Bard, Gary Allen Denton, David Daniel Dreyfuss